<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head lang="vi" xml:lang="vi">
    <meta http-equiv="Content-type" content="text/html; charset=utf-8" />
    <?php echo $append_css; ?>
    <?php echo $append_js; ?>
</head>
<body>
<div id="wrapper">
    <div id="header">adas</div>

<div id="mainContent">
    <div class="sidebar"></div>
    <div class="content">
    <?php echo $content_for_layout?>
    </div>
</div>
</div>
</body>